Engine-governor



No. 623,740. Patented Apr. 25, I899.

'G. E. BIBLET.

ENGINE GOVERNOR. (Application filed Nov. 8, 1898.)

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GEORGE E. RIBLET, OF ERIE, PENNSYLVANIA.

ENGINE-GOVERNOR.

vSPECIFIGATION forming part of Letters Patent No. 623,740, dated April 25-, 1899.

Application filed November 8, 1898. Serial No. 695,834. (No model.)

To a whom, it may concern:

Be it known that I, GEORGE E. RIBLE'I, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Engine-Governors; and I do hereby declare the following to beafull, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to engine-governors; and it consists in certain improvements in the construction thereof, as will be hereinafter fully described, and pointed out in the claims.

More particularly, the invention relates to that class of governors known as shaft or shifting-eccentric governors.

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a side elevation of the preferred construction. Fig. 2 shows a side elevation of an alternative construction, and

Fig. 3 a section on the line 3 3 in Fig. 2.

The governor comprises a rotative carrier A, which may be and usually is a fly-Wheel of the engine; a shaft B, on which said carrier is mounted, (in the preferred construction shown in Fig. 1;) the centrifugal and inertia weights 0 G, one of which is arranged to carry the eccentric D, and a centripetallyacting spring E, which is attached to the carrier and to the weights and arranged to oppose the centrifugal force incident to the rotation of the weights.

The weights O O are preferably formed of two masses of iron, of substantially the same thickness throughout, and are triangularly shaped and arranged on their pivots so that the outer edges of the weights are substantially parallel. The centers of gravity of the weights are of course on those ends of the weights which are the broadest. Consequently they operate, so far as centrifugal force is concerned, as though the mass were accumulated at the centers of gravity, which in the upper weight is at the right pivot and in the lower weight at the left pivot. It will readily be seen also that the mass of the weights being so extensively distributed gives to the weights a large inertia Value. For convenience I term the heavier parts of the weights 0 c as the weights, and the lighter parts 0 c as extensions on the weights. Vith this distinction the extensions are sufficiently long to bring their ends opposite the body of the weight, and the weights are suificiently broad to bring their inner edges in close proximity to the ends of the extensions. The ends of the weights have cam-surfaces 0 so that as the weights swing on their pivots the same distance is maintained between the weights and the extensions. To reduce friction, rollers c are arranged in the ends of the extensions so as to contact the cam-surfaces 0 By means of this construction the two weights are compelled to move together, so that an even gravity-balance is maintained. It is manifest that the cams may be put on the extensions and the rollers on the weights, also that the eccentric D may be so reduced as to be What is usually termed a crank.

In the operation of the device the carrier rotates in the direction of the arrow. The tendency of the weights is to bring the center of gravity in a radial line from their pivots. This is opposed by the spring E. A sudden decrease in the speed of the carrier tends to swing the weights by reason of their inertia in the direction of the rotation of the carrier,- and this tends to swing the eccentric to a longer throw. Vith a sudden acceleration of speed in the carrier the tendency of the weights is to move momentarily slower than the carrier so accelerated, and this tends to swing the weights on their pivots in a direction opposite to the direction of the rotation of the carrier and to thus shorten the throw of the eccentric.

In the alternative construction the two weights 0 O. are similarly pivoted, but are arranged one over the other, so that the web of both weights extends over the center of the carrier. The extensions are provided with the slots 0 and a pin 0 on the weights extends through these slots. The slots are arranged at such an angle as to allow the free movement of the pins in the slots as the weights move on their pivots.- The inside weight is provided with a slot (shown in dotted lines) a, through which the pivot-pin of the outside weight extends. A spring E is arranged to operate centripetally on the weights. The operation of this device is similar in principle to that of the preferred device.

What I claim as new is- 1. In an engine-governor, the combination with a rotative carrier; of two weights pivoted at opposite sides of the center of said carrier, and arranged to be actuated by i nertia and centrifugal forces, one of said weights being extended beyond its pivot to a position opposite the body of the companion weight, said extension and companion weight being so shaped and arranged as to be in immediate proximity to each other, and to bring one into direct and immediate engagement with the other; an eccentric actuated by said weights; and a spring arranged to act centripeiaily upon said weights.

2. In an engine-governor, the combination with a rotative carrier; of two weights pivoted at opposite sides of the center of said carrier and arranged to be actuated by inertia and centrifugal forces, said weights being extended beyond their pivots each to a position opposite the body of the other weight, said extensions and weights being so shaped as to be in immediate proximity to each other and in direct and immediate engagement with each other whereby a movement of one is conim unicated to the other; an eccentric actuated by said weights; and a spring arranged to act centripetally upon said weights.

3. In an engine-governor, the combination with a rotative carrier; of two triangularlyshaped weights arranged and formed to be actuated by inertia and centripetal forces pivoted at opposite sides of the center of said carrier and with the bodies of said weights opposite each other, and with the adjacent 'parts of said weights in immediate contact;

an eccentric actuated bysaid weights; and a spring arranged to act centripetaily upon said weights.

4. In an engine-governor, the combination with a rotative carrier; of two triangularlyshaped weights arranged and formed to be actuated by inertia and centripetal forces pivoted at opposite sides of the center of said carrier and arranged with the bodies of said weights opposite each other, adjacent parts of said weights being provided with cam-surfaces whereby the weights are maintained in constant contact; an eccentric actuated by said weights; and a spring arranged to act centripetally upon said weights.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE E. RIBLET.

\Vitnesses:

CLARK OLDs, Gno. E. GInsoN. 

